ringbuffer.h

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#ifndef __SOFTHDRINGBUFFER_H
#define __SOFTHDRINGBUFFER_H
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
#include "iatomic.h"
 
class cSoftHdRingbuffer
{
public:
    cSoftHdRingbuffer(size_t);
    virtual ~cSoftHdRingbuffer(void);
    void Reset(void);
    size_t Write(const void *, size_t);
    size_t GetWritePointer(void **);
    size_t WriteAdvance(size_t);
    size_t Read(void *, size_t);
    size_t GetReadPointer(const void **);
    size_t ReadAdvance(size_t);
    size_t FreeBytes(void);
    size_t UsedBytes(void);
 
private:
    char *m_pBuffer;              
    const char *m_pBufferEnd;     
    size_t m_Size;                
    const char *m_pReadPointer;   
    char *m_pWritePointer;        
 
    // The only thing modified by both
    atomic_t m_filled;            
};
#endif